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Basic Addition Lesson 10: Number 10

Here's an easy example:

10
+
1
=
11
 
                    
+
  
=
                      
 
   SaddleBrown Box   Maroon Box   Coral Box   Orchid Box   DarkSlateBlue Box   RoyalBlue Box   Thistle Box   Chocolate Box   MediumTurquoise Box   Olive Box  plus     Violet Box  equals     SaddleBrown Box   Maroon Box   Coral Box   Orchid Box   DarkSlateBlue Box   RoyalBlue Box   Thistle Box   Chocolate Box   MediumTurquoise Box   Olive Box   Violet Box

We start with ten boxes, add one box, and now have eleven boxes.


Here's another example:

10
+
2
=
12
 
                    
+
    
=
                        
 
   LimeGreen Box   SpringGreen Box   Purple Box   Fuchsia Box   DarkOrchid Box   Lavender Box   YellowGreen Box   BlueViolet Box   MediumPurple Box   Indigo Box  plus     Tan Box   Green Box  equals     LimeGreen Box   SpringGreen Box   Purple Box   Fuchsia Box   DarkOrchid Box   Lavender Box   YellowGreen Box   BlueViolet Box   MediumPurple Box   Indigo Box   Tan Box   Green Box

We start with ten boxes, add two boxes, and now have twelve boxes.


Try this problem.

10
+
3
=
 
                    
+
      
=
                          
 
   SkyBlue Box   Gold Box   SteelBlue Box   Goldenrod Box   Plum Box   GreenYellow Box   Teal Box   DodgerBlue Box   Chartreuse Box   CadetBlue Box  plus     SaddleBrown Box   Maroon Box   Coral Box  equals     SkyBlue Box   Gold Box   SteelBlue Box   Goldenrod Box   Plum Box   GreenYellow Box   Teal Box   DodgerBlue Box   Chartreuse Box   CadetBlue Box   SaddleBrown Box   Maroon Box   Coral Box

We start with ten boxes, add three boxes, and now have thirteen boxes.


In order to do basic addition, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

10 + 1 = 11
10 + 2 = 12
10 + 3 = 13
10 + 4 = 14
10 + 5 = 15
10+ 6 = 16
10 + 7 = 17
10 + 8 = 18
10 + 9 = 19
10 + 10 = 20
10 + 11 = 21
10 + 12 = 22


The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.

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